Astronomers have been given the rare opportunity to study an extrasolar object after the recent discovery of the interstellar ...

Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...

A rare interstellar comet is flying through our solar system. Here's how—and when—you might be able to see Comet ATLAS from ...

What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but.

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it ...

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

The first interstellar object spotted in our Solar System was the cigar-shaped ‘Oumuamua, discovered in 2017 by the ...

Dubbed 3I/ATLAS, the comet poses no danger to Earth and will remain roughly 150 million miles away as it speeds by.

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

The comet should be visible by telescope through September, before it gets too close to the sun, and reappear in December on ...